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authorV3n3RiX <venerix@koprulu.sector>2023-05-15 23:17:59 +0100
committerV3n3RiX <venerix@koprulu.sector>2023-05-15 23:17:59 +0100
commit0ac9b6e3d5a2939310e8ec443f2b326610ab9a9f (patch)
treeec05a8259b848ef3d83ddee78040aabbe15f6719 /sys-libs/glibc/files/2.25
parentbf434c621ee151cff3a6444443a818244e334029 (diff)
let's make redcore even more compatible with gentoo
Diffstat (limited to 'sys-libs/glibc/files/2.25')
-rw-r--r--sys-libs/glibc/files/2.25/glibc-2.25-gentoo-chk_fail.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/sys-libs/glibc/files/2.25/glibc-2.25-gentoo-chk_fail.c b/sys-libs/glibc/files/2.25/glibc-2.25-gentoo-chk_fail.c
deleted file mode 100644
index 2ef96b75..00000000
--- a/sys-libs/glibc/files/2.25/glibc-2.25-gentoo-chk_fail.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/* Copyright (C) 2004-2014 Free Software Foundation, Inc.
- Copyright (C) 2006-2014 Gentoo Foundation Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* Hardened Gentoo SSP and FORTIFY handler
-
- A failure handler that does not use functions from the rest of glibc;
- it uses the INTERNAL_SYSCALL methods directly. This helps ensure no
- possibility of recursion into the handler.
-
- Direct all bug reports to http://bugs.gentoo.org/
-
- People who have contributed significantly to the evolution of this file:
- Ned Ludd - <solar[@]gentoo.org>
- Alexander Gabert - <pappy[@]gentoo.org>
- The PaX Team - <pageexec[@]freemail.hu>
- Peter S. Mazinger - <ps.m[@]gmx.net>
- Yoann Vandoorselaere - <yoann[@]prelude-ids.org>
- Robert Connolly - <robert[@]linuxfromscratch.org>
- Cory Visi <cory[@]visi.name>
- Mike Frysinger <vapier[@]gentoo.org>
- Magnus Granberg <zorry[@]gentoo.org>
- Kevin F. Quinn - <kevquinn[@]gentoo.org>
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-
-#include <sys/types.h>
-
-#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-
-#include <kernel-features.h>
-
-#include <alloca.h>
-/* from sysdeps */
-#include <socketcall.h>
-/* for the stuff in bits/socket.h */
-#include <sys/socket.h>
-#include <sys/un.h>
-
-/* Sanity check on SYSCALL macro names - force compilation
- * failure if the names used here do not exist
- */
-#if !defined __NR_socketcall && !defined __NR_socket
-# error Cannot do syscall socket or socketcall
-#endif
-#if !defined __NR_socketcall && !defined __NR_connect
-# error Cannot do syscall connect or socketcall
-#endif
-#ifndef __NR_write
-# error Cannot do syscall write
-#endif
-#ifndef __NR_close
-# error Cannot do syscall close
-#endif
-#ifndef __NR_getpid
-# error Cannot do syscall getpid
-#endif
-#ifndef __NR_kill
-# error Cannot do syscall kill
-#endif
-#ifndef __NR_exit
-# error Cannot do syscall exit
-#endif
-#ifdef SSP_SMASH_DUMPS_CORE
-# define ENABLE_SSP_SMASH_DUMPS_CORE 1
-# if !defined _KERNEL_NSIG && !defined _NSIG
-# error No _NSIG or _KERNEL_NSIG for rt_sigaction
-# endif
-# if !defined __NR_sigaction && !defined __NR_rt_sigaction
-# error Cannot do syscall sigaction or rt_sigaction
-# endif
-/* Although rt_sigaction expects sizeof(sigset_t) - it expects the size
- * of the _kernel_ sigset_t which is not the same as the user sigset_t.
- * Most arches have this as _NSIG bits - mips has _KERNEL_NSIG bits for
- * some reason.
- */
-# ifdef _KERNEL_NSIG
-# define _SSP_NSIG _KERNEL_NSIG
-# else
-# define _SSP_NSIG _NSIG
-# endif
-#else
-# define _SSP_NSIG 0
-# define ENABLE_SSP_SMASH_DUMPS_CORE 0
-#endif
-
-/* Define DO_SIGACTION - default to newer rt signal interface but
- * fallback to old as needed.
- */
-#ifdef __NR_rt_sigaction
-# define DO_SIGACTION(signum, act, oldact) \
- INLINE_SYSCALL(rt_sigaction, 4, signum, act, oldact, _SSP_NSIG/8)
-#else
-# define DO_SIGACTION(signum, act, oldact) \
- INLINE_SYSCALL(sigaction, 3, signum, act, oldact)
-#endif
-
-/* Define DO_SOCKET/DO_CONNECT functions to deal with socketcall vs socket/connect */
-#if defined(__NR_socket) && defined(__NR_connect)
-# define USE_OLD_SOCKETCALL 0
-#else
-# define USE_OLD_SOCKETCALL 1
-#endif
-
-/* stub out the __NR_'s so we can let gcc optimize away dead code */
-#ifndef __NR_socketcall
-# define __NR_socketcall 0
-#endif
-#ifndef __NR_socket
-# define __NR_socket 0
-#endif
-#ifndef __NR_connect
-# define __NR_connect 0
-#endif
-#define DO_SOCKET(result, domain, type, protocol) \
- do { \
- if (USE_OLD_SOCKETCALL) { \
- socketargs[0] = domain; \
- socketargs[1] = type; \
- socketargs[2] = protocol; \
- socketargs[3] = 0; \
- result = INLINE_SYSCALL(socketcall, 2, SOCKOP_socket, socketargs); \
- } else \
- result = INLINE_SYSCALL(socket, 3, domain, type, protocol); \
- } while (0)
-#define DO_CONNECT(result, sockfd, serv_addr, addrlen) \
- do { \
- if (USE_OLD_SOCKETCALL) { \
- socketargs[0] = sockfd; \
- socketargs[1] = (unsigned long int)serv_addr; \
- socketargs[2] = addrlen; \
- socketargs[3] = 0; \
- result = INLINE_SYSCALL(socketcall, 2, SOCKOP_connect, socketargs); \
- } else \
- result = INLINE_SYSCALL(connect, 3, sockfd, serv_addr, addrlen); \
- } while (0)
-
-#ifndef _PATH_LOG
-# define _PATH_LOG "/dev/log"
-#endif
-
-static const char path_log[] = _PATH_LOG;
-
-/* For building glibc with SSP switched on, define __progname to a
- * constant if building for the run-time loader, to avoid pulling
- * in more of libc.so into ld.so
- */
-#ifdef IS_IN_rtld
-static const char *__progname = "<ldso>";
-#else
-extern const char *__progname;
-#endif
-
-#ifdef GENTOO_SSP_HANDLER
-# define ERROR_MSG "stack smashing"
-#else
-# define ERROR_MSG "buffer overflow"
-#endif
-
-/* Common handler code, used by chk_fail
- * Inlined to ensure no self-references to the handler within itself.
- * Data static to avoid putting more than necessary on the stack,
- * to aid core debugging.
- */
-__attribute__ ((__noreturn__, __always_inline__))
-static inline void
-__hardened_gentoo_fail(void)
-{
-#define MESSAGE_BUFSIZ 512
- static pid_t pid;
- static int plen, i, hlen;
- static char message[MESSAGE_BUFSIZ];
- /* <11> is LOG_USER|LOG_ERR. A dummy date for loggers to skip over. */
- static const char msg_header[] = "<11>" __DATE__ " " __TIME__ " glibc-gentoo-hardened-check: ";
- static const char msg_ssd[] = "*** " ERROR_MSG " detected ***: ";
- static const char msg_terminated[] = " terminated; ";
- static const char msg_report[] = "report to " REPORT_BUGS_TO "\n";
- static const char msg_unknown[] = "<unknown>";
- static int log_socket, connect_result;
- static struct sockaddr_un sock;
- static unsigned long int socketargs[4];
-
- /* Build socket address */
- sock.sun_family = AF_UNIX;
- i = 0;
- while (path_log[i] != '\0' && i < sizeof(sock.sun_path) - 1) {
- sock.sun_path[i] = path_log[i];
- ++i;
- }
- sock.sun_path[i] = '\0';
-
- /* Try SOCK_DGRAM connection to syslog */
- connect_result = -1;
- DO_SOCKET(log_socket, AF_UNIX, SOCK_DGRAM, 0);
- if (log_socket != -1)
- DO_CONNECT(connect_result, log_socket, &sock, sizeof(sock));
- if (connect_result == -1) {
- if (log_socket != -1)
- INLINE_SYSCALL(close, 1, log_socket);
- /* Try SOCK_STREAM connection to syslog */
- DO_SOCKET(log_socket, AF_UNIX, SOCK_STREAM, 0);
- if (log_socket != -1)
- DO_CONNECT(connect_result, log_socket, &sock, sizeof(sock));
- }
-
- /* Build message. Messages are generated both in the old style and new style,
- * so that log watchers that are configured for the old-style message continue
- * to work.
- */
-#define strconcat(str) \
- ({ \
- i = 0; \
- while ((str[i] != '\0') && ((i + plen) < (MESSAGE_BUFSIZ - 1))) { \
- message[plen + i] = str[i]; \
- ++i; \
- } \
- plen += i; \
- })
-
- /* Tersely log the failure */
- plen = 0;
- strconcat(msg_header);
- hlen = plen;
- strconcat(msg_ssd);
- if (__progname != NULL)
- strconcat(__progname);
- else
- strconcat(msg_unknown);
- strconcat(msg_terminated);
- strconcat(msg_report);
-
- /* Write out error message to STDERR, to syslog if open */
- INLINE_SYSCALL(write, 3, STDERR_FILENO, message + hlen, plen - hlen);
- if (connect_result != -1) {
- INLINE_SYSCALL(write, 3, log_socket, message, plen);
- INLINE_SYSCALL(close, 1, log_socket);
- }
-
- /* Time to kill self since we have no idea what is going on */
- pid = INLINE_SYSCALL(getpid, 0);
-
- if (ENABLE_SSP_SMASH_DUMPS_CORE) {
- /* Remove any user-supplied handler for SIGABRT, before using it. */
-#if 0
- /*
- * Note: Disabled because some programs catch & process their
- * own crashes. We've already enabled this code path which
- * means we want to let core dumps happen.
- */
- static struct sigaction default_abort_act;
- default_abort_act.sa_handler = SIG_DFL;
- default_abort_act.sa_sigaction = NULL;
- __sigfillset(&default_abort_act.sa_mask);
- default_abort_act.sa_flags = 0;
- if (DO_SIGACTION(SIGABRT, &default_abort_act, NULL) == 0)
-#endif
- INLINE_SYSCALL(kill, 2, pid, SIGABRT);
- }
-
- /* SIGKILL is only signal which cannot be caught */
- INLINE_SYSCALL(kill, 2, pid, SIGKILL);
-
- /* In case the kill didn't work, exit anyway.
- * The loop prevents gcc thinking this routine returns.
- */
- while (1)
- INLINE_SYSCALL(exit, 1, 137);
-}
-
-__attribute__ ((__noreturn__))
-#ifdef GENTOO_SSP_HANDLER
-void __stack_chk_fail(void)
-#else
-void __chk_fail(void)
-#endif
-{
- __hardened_gentoo_fail();
-}
-
-#ifdef GENTOO_SSP_HANDLER
-strong_alias (__stack_chk_fail, __stack_chk_fail_local)
-#endif